\begin{tikzpicture}
    \draw (0, 0) pic {atom} node [below=1.2cm] {氢原子};
    \draw (3, 0) pic {atom={number=8}} node [below=1.2cm, xshift=0.5cm] {氧原子};
    \draw (6, 0) pic {atom={number=11}} node [below=1.2cm, xshift=0.8cm] {钠原子};
\end{tikzpicture}

